EP3606787A1 - Système de suspension, de préférence siège de conducteur - Google Patents

Système de suspension, de préférence siège de conducteur

Info

Publication number
EP3606787A1
EP3606787A1 EP18704931.7A EP18704931A EP3606787A1 EP 3606787 A1 EP3606787 A1 EP 3606787A1 EP 18704931 A EP18704931 A EP 18704931A EP 3606787 A1 EP3606787 A1 EP 3606787A1
Authority
EP
European Patent Office
Prior art keywords
suspension
actuator
motor
spindle
spatial direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18704931.7A
Other languages
German (de)
English (en)
Other versions
EP3606787B1 (fr
Inventor
Max Werhahn
Peter Marienfeld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ContiTech Vibration Control GmbH
Original Assignee
ContiTech Vibration Control GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ContiTech Vibration Control GmbH filed Critical ContiTech Vibration Control GmbH
Publication of EP3606787A1 publication Critical patent/EP3606787A1/fr
Application granted granted Critical
Publication of EP3606787B1 publication Critical patent/EP3606787B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/501—Seat suspension devices actively controlled suspension, e.g. electronic control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1605—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the cinematic
    • B60N2/161—Rods
    • B60N2/162—Scissors-like structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1635—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the drive mechanism
    • B60N2/164—Linear actuator, e.g. screw mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/502—Seat suspension devices attached to the base of the seat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/505—Adjustable suspension including height adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/506—Seat guided by rods
    • B60N2/508—Scissors-like structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/52—Seat suspension devices using fluid means
    • B60N2/525—Seat suspension devices using fluid means using gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/50—Inertial sensors

Definitions

  • the present invention relates to a suspension system, preferably a driver's seat, according to the preamble of patent claim 1 and a vehicle having such a suspension system according to claim 15.
  • vibrations between a fixed suspension member and a relatively movable suspension member to be damped This also includes the driver's seats in some vehicles such. in trucks, buses, etc.
  • vibrations which can be initiated from the roadway into the vehicle, are kept away from the driver via the damping of the driver's seat, in order to protect the driver, especially on longer journeys.
  • This is not only intended to increase the driver's comfort, especially over longer distances, but also to protect his health and increase endurance, which can benefit the safety.
  • the fixed suspension member as a suspension base is a seat frame, which in the main excitation direction of the vibration, i. usually in height, rigidly connected to the body of the vehicle.
  • Spring part as a suspension upper part is the seat surface of the driver's seat, which is swinging relative to the seat frame in height.
  • EP 2 921 342 A2 describes a device for cushioning a suspension upper part in at least one spatial direction relative to a relatively movable one
  • Suspension base which e.g. can be applied to a vehicle seat.
  • the device has to cushion one between the suspension top and the
  • Suspension lower part acting spring device in the form of a shock absorber. It is a Actuator provided by which a force bidirectional in the direction of action of the spring means in the device can be introduced.
  • the actuator can be controlled via a control device.
  • the actuator has a trained as a rotating field magnet drive and a drivable by the drive designed as a ball screw coupling rod.
  • the drive is fixedly arranged on the suspension upper part or on the suspension lower part and the coupling rod on a loose bearing transverse connection or vice versa.
  • the coupling rod is designed as a spring-loaded coupling rod with at least one spring element.
  • the spring device has a spring which is arranged between the upper part of the suspension element and the lower part of the suspension and a scissor device which connects the upper part of the suspension with the lower part of the suspension and which movably connects to one another. Furthermore, at least one motion sensor is provided, with which the movements in the at least one spatial direction of the
  • Suspension upper part relative to the lower suspension part are detectable, which are forwarded to the control device. Furthermore, an acceleration sensor is provided with which accelerations between the upper part of the suspension and the lower part of the suspension can be detected, which can be forwarded to the control device.
  • Suspension underside and suspension top and on the other an active intervention in the vibration isolation can be done. This can e.g. when using the device of EP 2 921 342 A2 in a vehicle seat increase the comfort for the driver.
  • the actuator of the device of EP 2 921 342 A2 has a non-linear characteristic of the rotational speed in relation to the path. This can lead to a non-linear dependence between constant speed of the actuator and thus achieved path, which would cause a non-linear control or regulation, which may lead to worse results than a linear relationship.
  • An object of the present invention is to provide a suspension system, in particular a driver's seat, of the type described above, so that axial loads on the actuator can be avoided or at least reduced.
  • a possible linear characteristic of the rotational speed should be achieved in relation to the path of the actuator. This should preferably be done with standardized elements as an actuator.
  • the present invention relates to a suspension system, preferably a driver's seat, with a first suspension part, preferably a frame of the driving seat, a second suspension part, preferably a seat surface of the driver's seat, wherein the two suspension parts relative to each other in at least a first spatial direction, preferably in height, are mobile.
  • the suspension system further comprises a kinematics, preferably a scissors kinematics, which is designed to connect the two suspension parts relative to each other at least in the first spatial direction to move.
  • the suspension system also includes spring means adapted to support the static load of the second suspension member.
  • Suspension system as a driver's seat this may include the weight of a driver who sits on the second suspension part as a seat.
  • the weight of a driver who sits on the second suspension part as a seat may include the weight of a driver who sits on the second suspension part as a seat.
  • Spring device also designed to passively dampen relative movement of the two suspension parts to each other.
  • the spring device is preferably further or alternatively designed to define the vertical center position about which the suspension system is swingably mounted. Furthermore, the spring device is preferably additionally or alternatively designed to exert a function resetting to the central position.
  • Spring means is preferably used as elastic suspension e.g. designed as air spring or as a spiral spring.
  • the suspension system has an actuator, which is designed to initiate a force bidirectionally between the two suspension parts and thereby actively dampen the relative movement of the two suspension parts to one another.
  • the movement of the second suspension member such as e.g. a seating surface actively attenuated or by the excitation at the first suspension part such. Cab vibration of a vehicle actively isolated.
  • Such a suspension system may preferably be a driver's seat, but also any other suspension parts, which are connected relative to each other in at least a first spatial direction and both at least one passive and at least one have active actuator.
  • This can be, for example, a worktop, a hospital bed, a vehicle cabin, a measuring device and the like.
  • the suspension system according to the invention is characterized in that the actuator has a bearing, preferably a ball bearing, which is arranged within the power flow between the two suspension parts, so that an axial load from the driving axis of the actuator at least partially, preferably completely, can be kept away ,
  • This storage can be rigid or elastic. This storage is preferably arranged as directly as possible within the actuator where the relative movement can take place within the actuator.
  • This may also be e.g. implemented using a ball bearing with a standardized element, which can keep the cost of implementation low.
  • the actuator comprises a motor, preferably an electric motor, a threaded nut, preferably a
  • a ball screw nut, and a spindle wherein the motor is adapted to drive the spindle, so that the threaded nut relative to the spindle, preferably in the first spatial direction, can be moved, wherein the bearing between the motor and the spindle is arranged, wherein the motor is arranged on the first suspension part and the threaded nut on the second suspension part, or vice versa.
  • the threaded nut may be formed as a ball screw nut, as a roller screw nut or as a sliding nut.
  • the Gleitgewindemutter may be formed metallic and with or without coating. This provides a way to implement an actuator with standard components and thereby achieve the benefits described above.
  • a rotationally acting motor is used, as is usual in ball screws.
  • an electric motor is advantageous because electrical energy can usually be provided simpler and / or cleaner than, for example, pneumatic or hydraulic pressure.
  • the arrangement of the bearing between the motor and the spindle ensures that the previously described advantages of decoupling the axial forces can be implemented.
  • the motor and the spindle can be arranged on the first suspension part, which can be fixed, for example, as a frame of a driver's seat in relation to the second suspension part, which can be, for example, the seat surface of a driver's seat with which the threaded nut can be connected.
  • the motor together with the spindle can be fixedly arranged on the frame, which is usually structurally simpler than the reverse arrangement of these components.
  • the arrangement can also be reversed, so that the motor together with spindle with the seat of the driver's seat is mitbeweglich. This can increase the oscillating mass and thus have a passive damping effect.
  • the actuator can be aligned in the first spatial direction, in which also the relative movement to be actively damped can occur. This can cause as direct a power transmission as possible.
  • the actuator may also be partially or completely aligned in another spatial direction, in particular perpendicular to the first spatial direction, so that the relative movement between the two can be achieved via a force transmission, for example by means of kinematics as a shear kinematics
  • Suspension parts can be achieved. This can increase the design freedom of the suspension system.
  • the motor and the spindle are arranged so that the motor can drive the spindle directly, wherein the motor and the spindle have a common axis of rotation, which is preferably oriented in the first spatial direction. This can simplify the implementation.
  • the actuator is outside the two suspension parts, preferably further arranged parallel to the two suspension parts.
  • the actuator may be e.g. be easier to access for assembly, maintenance, repair etc.
  • the actuator comprises a motor, preferably an electric motor, a threaded nut, preferably a ball screw nut, and a spindle, wherein the motor is formed
  • Threaded nut ensure that the previously described advantages of decoupling the axial forces can be implemented. According to another aspect of the present invention, the engine and the
  • Threaded nut arranged such that the motor can drive the threaded nut indirectly via a coupling element, preferably via a toothed belt, wherein the motor and the threaded nut have two different axes of rotation, which are preferably parallel to each other and more preferably further in the first
  • the actuator is arranged between the two suspension parts, wherein the actuator is preferably further configured to initiate the force bidirectionally between the two suspension parts in the first spatial direction. In this way, a compact arrangement can be created, so that space outside the two suspension parts can be saved. Also, the actuator can be protected in this way.
  • the suspension system comprises an elastic damping element, preferably an elastomeric damping element, which is arranged between the spindle and the suspension part and designed to passively damp the flow of force.
  • an elastic damping element preferably an elastomeric damping element, which is arranged between the spindle and the suspension part and designed to passively damp the flow of force.
  • the suspension system has a control unit which is designed to control the actuator in such a way that the relative movement of the two suspension parts to each other can be actively damped. In this way, an active damping and in particular control can be implemented.
  • the suspension system includes at least one position sensor configured to detect a position of the first suspension member relative to the second suspension member in at least the first spatial direction, or conversely, wherein the position sensor is further configured to sense the detected position of the first To provide control unit.
  • the position sensor is designed to measure absolutely or incrementally.
  • An absolute position measurement offers the advantage of being able to use the position as an absolute value immediately after the start of operation of the suspension system.
  • an absolute measuring sensor is usually more expensive than an incrementally measuring position sensor.
  • the suspension system has at least one acceleration sensor which is designed to detect an acceleration of the first suspension part relative to the second suspension part in at least one spatial direction, preferably in the first spatial direction, or vice versa, wherein the acceleration sensor is further formed is the detected acceleration of the
  • the information of the acceleration can be used additionally or alternatively to a position information for the implementation of the active damping.
  • the acceleration of the first suspension part such as e.g. the frame of a driver's seat, so that by the active damping vibrations from the second suspension member such. the seat of the driver's seat can be kept away.
  • the suspension system has a plurality of acceleration sensors, which are formed, a plurality of accelerations of the first suspension member relative to the second suspension member in a plurality of spatial directions, preferably in three mutually perpendicular directions, particularly preferably in depth, in width and in height, or vice versa, wherein the acceleration sensors are further configured to detect To provide accelerations of the control unit.
  • the suspension system has at least one displacement device, preferably at least one horizontal displacement device, particularly preferably at least one horizontal rail system, which is designed so that
  • the second suspension part relative to the kinematics in a second spatial direction, preferably in depth, can be moved, and / or
  • the kinematics can be displaced relative to the first suspension part in a second spatial direction, preferably at depth, and / or
  • the first suspension member relative to a substrate in a second spatial direction, preferably in depth, can be moved.
  • comfort for the driver is further increased by e.g. the distance of the seat surface of the driver's seat to the steering wheel can be changed.
  • This relative mobility e.g. in depth may vary depending on
  • Embodiment of the driver's seat to be implemented at the previously described various locations between the seat and the body of the vehicle.
  • the present invention also relates to a vehicle having a suspension system as previously described.
  • a vehicle having a suspension system as previously described.
  • the properties and advantages described above can be implemented in a vehicle such as in trucks, in buses, etc. This can be done at various points within the vehicle at which suggestions are to be actively attenuated, for example, from the roadway into the vehicle or within the vehicle.
  • the suspension system may be a driver's seat, so that the previously described characteristics and advantages for increasing the driver's comfort in a vehicle can be used.
  • Fig. 1 is a schematic diagram of a passive and active damping of a
  • Fig. 2 is a schematic perspective view of an inventive
  • Fig. 3 is a schematic perspective view of an inventive
  • Fig. 4 is a schematic perspective sectional view of an inventive
  • Fig. 5 is a schematic perspective sectional view of a suspension system according to the invention in the form of a driver's seat in a fourth embodiment.
  • the description of the o.g. Figures take place in Cartesian coordinates with a longitudinal direction X, a transverse direction Y oriented perpendicular to the longitudinal direction X, and a vertical direction Z perpendicular to both the longitudinal direction X and the transverse direction Y.
  • the longitudinal direction X can also be referred to as depth X
  • the transverse direction Y as width Y
  • the vertical direction Z are also referred to as height Z.
  • the driver's seat 1 shows a schematic diagram of a passive and active damping of a suspension system 1 in the form of a driver's seat 1.
  • the driver's seat 1 has a frame 10 as a first fixed suspension part 10 and a seat 11 as a second movable suspension part 11, where "fixed” and " movable “relative to one another.
  • the seat 11 is arranged at the height Z above the frame 10 and connected thereto by a kinematics 12 in the form of a shear kinematics 12.
  • the shear kinematics 12 is oriented so that the two pairs of half-shears in can move the depth X, so that the seat 11 relative to the frame 10 in the height Z can raise or lower.
  • a spring device 13 is also arranged in the form of an elastic suspension 13, which is designed as an air spring 13.
  • the air spring 13 serves to absorb the static forces from the seat 11 to the frame 10 and is able to isolate vibrations from the frame 10 in the direction of the seat surface 11 to a certain extent and within a low-frequency oscillation range. Furthermore, the air spring 13 acts on a deflection from the central position restoring to the relative movement and thus obtains the medium-term desired center position.
  • an actuator 2 is further provided, which is arranged parallel to the air spring 13 and can act either directly or indirectly via the shear kinematics 12 in the height Z.
  • the actuator 2 is controlled and regulated by a control unit 3 for this purpose.
  • a position sensor 4 which is arranged on the seat 11 in such a way that the position sensor 4 can detect a vertical position ZI of the seat 11 relative to a vertical position Z2 of the frame 10.
  • a movement of the seat 11 relative to the frame 10 can be closed and the speed of the relative movement can also be determined from the extent of the position change. Furthermore, the frame 10 of the driver's seat 1 to an acceleration sensor 5, which can detect the acceleration of the frame 10 in the height Z, so that this information can be considered in the control of the control unit 3.
  • the actuator 2 shows a schematic perspective view of a suspension system 1 according to the invention in the form of a driver's seat 1 in a first embodiment.
  • the actuator 2 has a first actuator holder 20, with which the actuator 2 is fixedly mounted on one side of the frame 10 on one side.
  • the frame 10 is in turn fixed on a base 6 as in this case the body 6 of a vehicle arranged.
  • the actuator 2 a second actuator holder 21, with which the actuator 2 is mounted on the other side fixed to the seat surface 11.
  • the actuator 2 is mounted in the depth X from the back of the frame 10 and on the seat 11, so that the actuator 2 can be used in this embodiment and in particular retrofitted without having to change the structure of the driver's seat 1 itself.
  • an electric motor 22 is fixedly mounted and connected to a spindle 29 of a ball screw such that the electric motor 22, the spindle 29 can drive directly rotationally.
  • the electric motor 22 and the spindle 29 have for this purpose a common axis of rotation, which is aligned in the height Z and in this embodiment, the driving axis of the actuator 2 represents.
  • a threaded nut 25 is arranged as a ball screw nut 25 of the ball screw and fixedly connected to the second actuator holder 21.
  • the spindle 29 is rotationally driven by the electric motor 22, so the seat 11 can be moved in the height Z relative to the frame 10 via the movement of the ball screw nut 25, so that an active damping of vibrations can be implemented.
  • the spindle 29 is rotatably mounted rotatably by means of a bearing 28 in the form of a ball bearing 28 directly to the first actuator holder 20, so that the spindle 29 can indeed perform the rotational movement of the electric motor 22, but at the same time axial forces from the seat 10 of the ball bearing 28th recorded and thus can be kept away from the electric motor 22. This can relieve the electric motor 22 and conserve.
  • a linear characteristic between the rotational speed of the electric motor 22 in relation to the path of the actuator 2 in height Z can be achieved, which improves the accuracy of the control and thus the quality and effectiveness of the vibration damping over known active damping of driver seats 1 can increase. Further, this can be achieved by using a ball screw through standardized elements such as the electric motor 22, the spindle 29 and the ball screw nut 25 in combination be achieved with a ball bearing 28, which can simplify the implementation and keep the cost of implementing this advantage low.
  • Fig. 3 shows a schematic perspective view of a suspension system 1 according to the invention in the form of a driver's seat 1 in a second embodiment.
  • This second embodiment differs from the first embodiment only in that case, in this case, the electric motor 22 with the spindle 29 is fixedly mounted on the seat 11 by means of the first actuator holder 20 and the ball screw nut 25 is fixedly mounted on the frame 10 by means of the second actuator holder 21 , As a result, the same properties as in the first embodiment can be achieved. Furthermore, the mass of the seat surface 11 to be damped can be increased, which can have a shrinkage-damping effect.
  • FIG. 4 shows a schematic perspective sectional view of a suspension system 1 according to the invention in the form of a driver's seat 1 in a third embodiment.
  • 5 shows a schematic perspective sectional view of a suspension system 1 according to the invention in the form of a driver's seat 1 in a fourth embodiment.
  • the actuator 2 is disposed at the height Z between the frame 10 and the seat 11, so that outside the basic dimensions of the driver's seat 1 no space must be used for this purpose.
  • the electric motor 22 and the spindle 29 are arranged side by side to achieve the largest possible stroke in the height Z between the frame 10 and the seat surface 11.
  • the driving axis of the actuator 2, which corresponds to the axis of the motor 22 is thus arranged parallel to the axis of the spindle 29 in these two embodiments.
  • the electric motor 22 is connected via a first actuator holder 20 in the form of a trough 20 fixed to the lower portion of the scissors kinematics 12 and disposed approximately below the air spring 13.
  • the electric motor 22 has a toothed disk 23, which can be rotationally driven by the electric motor 22.
  • the ball screw nut 25 is fixedly connected to a hollow shaft 27 and arranged at the height Z above the hollow shaft 27.
  • the hollow shaft 27 is rotatably rotatable about the ball bearing 28 with the
  • Trough 20 connected, so that in these two embodiments, axial forces which can act on the ball screw nut 25 can be taken over the ball bearing 28 of the tub 20.
  • a toothed wheel 26 of the hollow shaft 27 is fixedly arranged.
  • the two pay slices 23, 26 are connected via a toothed belt 24 as a coupling element 24, so that a rotational movement of the electric motor 22 via the toothed belt 24 can be rotationally transmitted to the ball screw nut 25.
  • the spindle 29 is arranged so that the spindle 29 can be raised and lowered by the rotation of the ball screw nut 25 in the height Z.
  • the spindle 29 in the third embodiment of Figure 4 is rigidly connected via the second actuator holder 21 in the form of a bracket 21 with the seat surface 11.
  • Damping element 15 arranged to provide a passive damping at this point.
  • a horizontal displacement device 14 is provided in the form of a horizontal rail system 14 between the scissors kinematics 12 and the frame 10, so that the seat surface 11 together with scissors kinematics 12 and actuator 2 in the depth X relative can be moved to the frame 10. This allows a driver to adjust the driver's seat 1 relative to the steering wheel.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

La présente invention concerne un système de suspension (1), de préférence un siège de conducteur (1), comprenant une première partie de suspension (10), de préférence un cadre (10) du siège de conducteur (1), une deuxième partie de suspension (11), de préférence une surface d'assise (11) du siège de conducteur (1), les deux parties de suspension (10, 11) étant mobiles l'une par rapport à l'autre dans au moins une première direction spatiale (Z), de préférence dans le sens de la hauteur (Z), une cinématique (12), de préférence une cinématique articulée (12), laquelle est conçue pour relier les deux parties de suspension (10, 11) de manière mobile l'une par rapport à l'autre au moins dans la première direction spatiale (Z), un dispositif ressort (13), lequel est conçu pour supporter la charge statique de la deuxième partie de suspension (11), et un organe de réglage (2), lequel est conçu pour appliquer une force de manière bidirectionnelle entre les deux parties de suspension (10, 11) et pour amortir ainsi activement le déplacement relatif des deux parties de suspension (10, 11) l'une par rapport à l'autre. Le système de suspension (1) est caractérisé en ce que l'organe de réglage (2) comprend un palier (28), de préférence un roulement à billes (28), lequel est disposé à l'intérieur du flux de forces entre les deux parties de suspension (10, 11) de telle sorte qu'une charge axiale puisse être maintenue au moins partiellement, de préférence complètement, à l'écart de l'arbre d'entraînement de l'organe de réglage (2).
EP18704931.7A 2017-04-06 2018-02-05 Système de suspension, de préférence siège de conducteur Active EP3606787B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017205902.8A DE102017205902A1 (de) 2017-04-06 2017-04-06 Federungssystem, vorzugsweise Fahrersitz
PCT/EP2018/052753 WO2018184752A1 (fr) 2017-04-06 2018-02-05 Système de suspension, de préférence siège de conducteur

Publications (2)

Publication Number Publication Date
EP3606787A1 true EP3606787A1 (fr) 2020-02-12
EP3606787B1 EP3606787B1 (fr) 2021-06-09

Family

ID=61198829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18704931.7A Active EP3606787B1 (fr) 2017-04-06 2018-02-05 Système de suspension, de préférence siège de conducteur

Country Status (5)

Country Link
US (1) US11377003B2 (fr)
EP (1) EP3606787B1 (fr)
CN (1) CN110431041A (fr)
DE (1) DE102017205902A1 (fr)
WO (1) WO2018184752A1 (fr)

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EP3606787B1 (fr) 2021-06-09
US20200031256A1 (en) 2020-01-30
WO2018184752A1 (fr) 2018-10-11
DE102017205902A1 (de) 2018-10-11
US11377003B2 (en) 2022-07-05

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